Terry-loom



A. E. RHOADES.

TERRY LOOM.

APPLICATION FILED OCT- ]4, 1919.

Patented June 1, 1920.

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I711) 7 U60 7 7 I diam/20 lijiiwzzdes.

A. E. RHOADES.

TERRY LOOM. APPLICATION FILED OCT- 14, I9l9- Patented June 1, 1920.

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were r I ALONZO E. RHOADES, OF HOPEDALE, MASSACHUSETTS, ASSIGNQR '10 DBAPER CORPO- RATION, 0F HOPEDALE, MASSACHUSETTS, A CORPORATION OF MAI-NE,

TERRY-LO O1VL Specification of Lett Fatent- Patented June 1, 1920.

Application filed October 14, 1919. Serial No. 330,541

To all whom it may concern:

Be it known that I, ALoNzo E. RHoADEs, of Hopedale, in the county of Worcester and State of Massachusetts, have invented certain new and useful Improvements in Terry-Looms, of which the following is a specification.

The present invention consists in improvements upon the type of terry looms set forth in Letters Patent of the United States of Charles F. Merrill, No. 1,322,715, November 25, 1919. In the loom of that patent the terry or beat-up motion is automatically controlled by a pattern mechanism so that alternating stripes of plain and terry fabric are woven. The pattern mechanism controls a latch which connects the beat-up motion shaft to its actuating cam. When the latch is withdrawn plain weaving is done, and when it makes connection terry weaving ensues. Now, w1th the mechanism of the aforesaid Merrill patent it occasionally happens, when the latch is released by the action of the pattern mechanism that it fails to connect promptly the beat-up motion shaft with its actuating cam with the result that the terry loops first beaten up are too short thusmarring the appearance of the fabric.

The object of the present improvements is to insure the immediate connecting action of the latch when called by the pattern mechanism so that the first terry loops woven shall be of full length.

The improvements are illustrated in the accompanying drawings, in which- Figure 1, is a plan view of the connections between the beat-up motion shaft and its actuating cam. Fig. 2, is a section in the plane indicated'bythe line 22 in Fig. 1. Fig. 3, is an enlarged view of certain of the parts. Fig. 4, is a section in the plane indicated by the line 4- 1, in Fig. 3. Figs. 5, 6 and 7 ,are enlarged detail views of the different connecting elements.

The beat up motion shaft A, is rocked from the cam B, on the continuously rotating shaft C, by the illustrated mechanism. Fast on the shaft A, is a crank arm D, shown in Fig. 1. The cam lever is made in two parts E, and F, shown respectively in Figs. 6 and .7. The part E, will be called the connector because it carries the latch G, which connects (under the call of the pattern mechanism) the cam lever to the crank arm D, and hence to the shaft A. The part F, will be called the transmitter because through it the movement of the cam 1s transmitted to the beat-up motion shaft.

The connector E, is loose on the shaft A, and 1s malntained in juxtaposition to the crank arm D, by the collar a. The latch G, 1s pivoted to the connector at b, and is moved to its latching position by a spring H (Fig. 1). The latch is withdrawn b' the pattern mechanism as set forth in said err1ll application through connections, of which a link a, lever 03, and Wire 6, are shown 1n Fig. 2. The latching tooth f. of the latch always occupies a locking slot 9, in the connector.

The crank arm D, has a locking notch h, for the reception of the latching end of the latch. When the latch is withdrawn from the notch h, by the pattern mechanism, as shown 1n Fig. 1, the cam lever is function ally disconnected from the beat-up motion shaft; the cam imparts no motion to said shaft; and plain fabric is woven. Whenthe pattern mechanism releases the latch its latching end enters the slot 72., under the lmpulse of the spring H; the beat-up mo tion shaft is rocked; and terry fabric is woven.

The crank arm carries a headed stud I (Fig. 1), the shank of which extends through a motion limiting slot J, in the connector. A contractile spring K, is attached at its upper end to an upwardly extending standard 11, of the crank arm, and at its lower end to an eye 7', on the connector. Accordingly, when the latch is withdrawn from the notch h, the'spring K, acts to lift the connector until the bottom of the slot J, seats against the bolt I, thus-definitely positioning the connector with respect to the crank arm so that then the slot 9 and notch h are in register. This is the condition when the latch is released by the pattern mechanism. Consequently, the latch makes sure and prompt connection atthe right moment, and the first terry loops beaten up are of full length.

The transmitter F, has a knuckle jointconnection with the connector, 70, being the joint pivot. The cam C, is an open faced one, and the transmitter cam roll Z, is maintained against the face of the cam by an expansible spring L. This spring is located within a housing M, on the transmitter, and

it bears against a seat N, on the connector below the pivot is. The spring L, tends to turn the transmitter on the pivot is, and to maintain the cam roll Z, against the cam.

Figs. 1 and 2 of the drawings indicate a crank'arm 0, fast on the shaft and a rod P, which constitute part of the mechanism of said Merrill patent whereby the rocking of the shaft A imparts movement to the reed there being in practice one such arm and rod at each end of the shaft, as shown in said patent. The rod P, is urged upwardly by a springto hold the reed in beating-up position, as set forth in said Merrill patent. lVhen the crank arm D, and connector E,

are connected by the latch G, the cam B, de-

presses the transmitter F, and the open end or heel m, of the housing bears against the a 7 seat N, of the connector, so that the conit rocks and the crank arm 0, and rod P,

move downwardly thus swlnging the reed backwardly on the lay so that the weft is not forced up to the fell of the cloth. Vhen the lowpart of the cam approaches the cam roll, the transmitter F, swings upwardly on its pivot is, under the push of the spring L,

and rod P, arm 0, arm D, and connector E, are lifted by the springs which close the reed so that the strands of weft which have 7 now depresses the transmitter and connector, the latter swinging on the shaft A, without rocking it. During this downward movement of the connector, the spring K, yields and the connector and its slot J, move relatively to the arm D, and its stud I. Then,

as the low part of the cam approaches the cam roll Z, the transmitter F, swings upwardly on its pivot Z0, under the influence of the spring L, and the spring K, lifts the connector E, until the bottom of the slot J, seats against the stud I. This brings the slot 9 and notch it into register. The timing of the pattern mechanism is such that the slot 9 and notch h, are thus in register when the latch G is released, so that it looks the connector to the beat-up motion shaft with promptness and certainty so that full length terry loops are produced when the terry weave is resumed.

cooperation between the cam and cam roll since it is compensated for by the swing of the transmitter on its pivot 70. Likewise, this rise and fall of the arm D, does not affect the timely registration between the locking slot 9, and notch h, because the relation between the slot J, and stud I, and

, rocking beat-up motion shaft; a crank arm fast thereon having a'laterally projecting stud, a locking notch and an upstanding arm; a connector loose on said shaft having a motion limiting slot through which said stud extends and a locking slot which registers with said notch when the bottom of said motion limiting slot seats against said stud; a contractile lifting spring connecting said upstanding arm and connector and acting to lift said connector; a spring actuated pattern controlled latch on said connector adapted to enter said notch and lock said crank arm to the connector; a rotary open faced cam ;a transmitter having a cam roll bearing against said cam; a knuckle joint connection between said connector and transmitter acting to maintain the cam roll against the cam. r

2. A terry loom having, in combination, a rocking beat-up motion shaft; a crankarm fast thereon having a laterally projecting stud, and a locking notch; a connector loose on said shaft having a motion limiting slot through which said stud extends and a looking slot which registers with said notch when the bottom of said motion limiting slot seats against said stud; a contractile lifting spring connecting said crank arm and connector and acting to lift said connector; a spring actuated pattern controlled latch on said connector adapted to enter said notch and lock said crank arm to the connector; a rotary open faced cam; a knuckle joint connection between said transmitter and con nector; and a spring between said connector and transmitter acting to maintain the transmitter against the cam.

3. A terry loom having, in combination, a rocking beat-up motion shaft; a crank arm fast thereon having a laterally projecting stud, and a locking notch;'.a connector loose on said shaft having a motion limiting slot through which said stud extends and a locking slot which registers with said notch when the bottom of said motion limiting slot seats against said stud; a contractile lifting spring connecting said crank arm and connector and acting to lift said connector; a pattern controlled latch adapted to enter said locking slot and notch and lock said crank arm to the connector; a r0- tary open faced cam; a transmitter bearing against said cam; a knuckle joint connection between said transmitter and connector; and a spring between said connector and transmitter acting to maintain the transmitter against the cam.

1. A terry loom having, in combination, a rocking beat-up motion shaft; a crank arm fast thereon having a laterally projecting stud; a connector loose on said shaft,

having a motion limiting slot through which said stud extends; a lifting spring connecting said crank arm and connector and actin to lift said connector; a pattern con trolled latch adapted to lock said crank arm to the connector; a rotary open faced cam; a transmitter bearing against said cam; a knuckle joint connection between said transmitter and connector; and a spring between said connector and transmitter acting to maintain the transmitter against the cam.

5. A terry loom having, in combination, a rocking beat-up motion shaft; a crank arm fast thereon having a projecting stud; a connector loose on said shaft having a motion limiting slot through which said stud extends; a spring connecting said crank arm and connector; a pattern controlled latch adapted to lock said crank arm to the connector; a rotary open faced cam; a trans mitter bearing against said cam; a knuckle joint connection between said transmitter and connector; and a spring between said connector and transmitter acting to maintain the transmitter against the cam.

6. A terry loom having, in combination, a rocking beat-up motion shaft; a crank arm fast thereon; a connector loose on said shaft; motion limiting means which limits the relative movement between said crank arm and connector; a spring connecting said crank arm and connector; a pattern controlled latch adapted to lock said crank arm to the connector; a rotary cam; a transmitter cooperating with said cam; and a knuckle joint connection between said transmitter and connector.

7 A terry loom having, in combination, a rocking beat-up motion shaft; a crank arm fast thereon; a connector loose on said shaft; a pattern controlled latch adapted to lock said crank arm to the connector; a rotary open faced cam; a transmitter having a'cam roll bearing against said cam; a

knuckle joint connection between said transmitter and connector; and a spring between said connector and transmitter acting to maintain the cam roll against the cam.

In witness whereof I have hereunto signed my name.

ALONZO E. RHOADES. 

